Siemens SIPART DR20 User Manual

Project Planning Manual SIPART DR20
Programming according to the following Fig. 3/8 is used if automatic mode is to be selected directly
following computer failure.
Signals Control commands
front and digital
inputs **)
Effec-
tive
output
Effective setpoint
S19=0
Front
LED ***)
Digital
output
Explanations
Computer
failure
H Si BL CB INT INT H /RB /RC Y S17=0
S18=0
=1
=0
=0
=1
=1
=1
0 0 0 1 0 0 0 0 0 yE(n) *) wi x wS wS DDC mode autom. mode prepared
1 0 0 1 0 0 1 1 1 yH(n)/ wi/ x wi(n)/ x Manual mode
0 1 0 1 0 0 0,1 0 0 yS wi x wi(n) x Safety mode
1 1 0 1 0 0 0,5 1 1 yS wi x wi(n) x Safety mode
0 0 1 1 0 0 0,1 0 0 yBL wi x wi(n) x Blocking mode
1 0 1 1 0 0 0,9 1 1 yH(n)/ wi/ x wi(n)/ x Manual mode
0 1 1 1 0 0 0,1 0 0 yS wi x wi(n) x Safety mode
1 1 1 1 0 0 0,5 1 1 yS wi x wi(n) x Safety mode
Computer at
standby
0 0 0 0 0 0,5 0 0 1 yA(n) wi wi(n) wi(n) wi(n) Automatic mode
1 0 0 0 0 0,5 1 1 1 yH(n)/ wi x wi(n)/ x Manual mode
-
0 1 0 0 0 0,5 0,1 0 1 yS wi x wi(n) x Safety mode
1 1 0 0 0 0,5 0,5 1 1 yS wi x wi(n) x Safety mode
0 0 1 0 0 0,5 0,1 0 1 yBL wi x wi(n) x Blocking mode
1 0 1 0 0 0,5 0,9 1 1 yH(n)/ wi x wi(n)/ x Manual mode
0 1 1 0 0 0,5 0,1 0 1 yS wi x wi(n) x Safety mode
1 1 1 0 0 0,5 0,5 1 1 yS wi x wi(n) x Safety mode
Computer switched off, controller at DDC backup standby
0 0 0 0 1 1 0 1 1 yA(n) wi/ wi(n) wi(n) wi(n) Automatic mode
1 0 0 0 1 1 1 1 1 yH(n)/ wi/ wi(n) wi(n)/ wi(n)/ Manual mode
0 1 0 0 1 1 0,1 1 1 yS wi/ wi(n) wi(n) wi(n) Safety mode
1 1 0 0 1 1 0,5 1 1 yS wi/ wi(n) wi(n) wi(n) Safety mode
0 0 1 0 1 1 0,1 1 1 yBL wi/ wi(n) wi(n) wi(n) Blocking mode
1 0 1 0 1 1 0,9 1 1 yH(n)/ wi/ wi(n) wi(n)/ wi(n)/ Manual mode
0 1 1 0 1 1 0,1 1 1 yS wi/ wi(n) wi(n) wi(n) Safety mode
1 1 1 0 1 1 0,1 1 1 yS wi/ wi(n) wi(n) wi(n) Safety mode
Computer switched off, controller not at DDC backup standby
0 0 0 1 1 0,9 0 1 1 yA(n) wi/ wi(n)/ wi(n)/ wi(n)/ Automatic mode
1 0 0 1 1 0,9 1 1 1 yH(n)/ wi/ wi(n)/ wi(n)/ wi(n)/ Manual mode
0 1 0 1 1 0,9 0,1 1 1 yS wi/ wi(n)/ wi(n)/ wi(n)/ Safety mode
1 1 0 1 1 0,9 0,5 1 1 yS wi/ wi(n)/ wi(n)/ wi(n)/ Safety mode
0 0 1 1 1 0,9 0,1 1 1 yBL wi/ wi(n)/ wi(n)/ wi(n)/ Blocking mode
1 0 1 1 1 0,9 0,9 1 1 yH(n)/ wi/ wi(n)/ wi(n)/ wi(n)/ Manual mode
0 1 1 1 1 0,9 0,1 1 1 yS wi/ wi(n)/ wi(n)/ wi(n)/ Safety mode
1 1 1 1 1 0,9 0,5 1 1 yS wi/ wi(n)/ wi(n)/ wi(n)/ Safety mode
Computer at standby, controller not at DDC backup standby
Fig. 3/8 DDC backup controller/DDC manual control station
Manual mode has priority over DDC mode or BL (S29 = 1)
*) yE is either yN or yES (S42). In DDC mode the manipulated variable current of the K controller
can be switched off with S36 = 1 (operation with two output stages). The external y source
must be made to track the effective variable y, if DDC mode is not present.
**) When using the digital input BE, only one of the control variables CB, BL or Si is possible as
defined by S15.
***) The data on "Signals front LED" (e.g. 0.5) refer to the flashing frequency (see 3.2.6).
(n) The variable is made to track the last value effective before switchover, thus ensuring hitchless
switchover.
NOT(RC) = NOT{NOT(INT) AND CB AND NOT(H)} NOT(RB) = INT OR H / = adjustable
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Siemens SIPART DR20 Specifications

General

Brand	Siemens
Model	SIPART DR20
Category	Controller
Language	English